Lexus LC500 Manual page 193

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wheel and the symbol shown in the illustra-
tion are displayed on the multi-information
display to warn the driver. The warning
stops when the system determines that the
driver holds the steering wheel. Always
keep your hands on the steering wheel
when using this system, regardless of warn-
ings.
When the system determines that the
driver is driving without holding the steer-
ing wheel while the system is operating
If the driver continues to keep their hands
off of the steering wheel, the buzzer sounds,
the driver is warned and the function is tem-
porarily canceled. This warning also oper-
ates in the same way when the driver
continuously operates the steering wheel
only a small amount.
Depending on the vehicle condition and
road conditions, the warning may not oper-
ate. Also, if the system determines that the
vehicle is driving around a curve, warnings
will occur earlier than during straight-lane
driving.
When the system determines that the
driver is driving without holding the steer-
ing wheel while the steering wheel assist
of the steering assist function is operat-
ing.
If the driver continues to keep their hands
off of the steering wheel and the steering
wheel assist is operating, the buzzer sounds
and the driver is warned. Each time the
buzzer sounds, the continuing time of the
buzzer becomes longer.
Vehicle sway warning function
When the system determines that the vehi-
cle is swaying while the vehicle sway warn-
4-5. Using the driving support systems
ing function is operating, a buzzer sounds
and a warning message urging the driver to
rest and the symbol shown in the illustration
are simultaneously displayed on the multi-
information display.
Depending on the vehicle and road condi-
tions, the warning may not operate.
White (yellow) lines are only on one side
of road
The LKA system will not operate for the
side on which white (yellow) lines could not
be recognized.
Conditions in which functions may not
operate properly
In the following situations, the front camera
may not detect white (yellow) lines and vari-
ous functions may not operate normally.
There are shadows on the road that run
parallel with, or cover, the white (yellow)
lines.
The vehicle is driven in an area without
white (yellow) lines, such as in front of a
tollgate or checkpoint, or at an intersec-
tion, etc.
The white (yellow) lines are cracked,
"Botts' dots", "Raised pavement marker"
or stones are present.
The white (yellow) lines cannot be seen
or are difficult to see due to sand, etc.
The vehicle is driven on a road surface
that is wet due to rain, puddles, etc.
The traffic lines are yellow (which may be
more difficult to recognize than lines that
are white).
The white (yellow) lines cross over a
curb, etc.
The vehicle is driven on a bright surface,
such as concrete.
The vehicle is driven on a surface that is
191
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